Anne Nienstedt, M.D.
NPI 1225365950 · Family Medicine Physician · Wading River, NY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anne Nienstedt, M.D. is a Family Medicine Physician provider in Wading River, NY (NPI 1225365950).
Provider details
- NPI number
- 1225365950
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 254725 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,057 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 1,954 | $85 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 594 | $141 |
| Advance Care Planning, First 30 Minutes99497 | 229 | $92 |
| Residence Visit for Established Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes99347 | 218 | $50 |
| Residence Visit for New Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99344 | 62 | $157 |
Typical Medicare-allowed amounts for these services range $50–$157 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 160 | 30 |
| Atorvastatin Calcium | 159 | 38 |
| Amlodipine Besylate | 144 | 27 |
| Apixabanbrand: Eliquis | 108 | 24 |
| Metoprolol Succinate | 91 | 25 |
| Potassium Chloride | 83 | 28 |
| Furosemide | 65 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-11-18
- Last updated
- 2021-09-08
- Certified
- 2021-09-08
Frequently asked questions
- What is Anne Nienstedt's NPI number?
- Anne Nienstedt's National Provider Identifier (NPI) is 1225365950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anne Nienstedt's specialty?
- Anne Nienstedt is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Anne Nienstedt located?
- Anne Nienstedt's practice location on file with NPPES is 67 Karen Court, Wading River, NY 11792.
- What is Anne Nienstedt's phone number?
- The practice phone number listed in the NPPES registry for Anne Nienstedt is (631) 953-7719.
- Does Anne Nienstedt accept Medicare?
- Anne Nienstedt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anne Nienstedt's NPI active?
- Yes — Anne Nienstedt's NPI (1225365950) is active in the NPPES registry as of the last update on 2021-09-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.